Gas Connection; Electrical Connections; Important - Ferroli BLUEHELIX TOP RRT K 50 Instrucciones De Uso, Instalación Y Mantenimiento

in open-vessel systems with vessel hydrostatic height able to ensure compliance with the minimum operating
pressure indicated in the product technical specifications.
The presence of deposits on the boiler exchange surfaces due to non-compliance with the above re-
quirements will involve non-recognition of the warranty.
Frost protection kit for outdoor installation (optional - 013022X0)
In case of installation outdoors in a partially protected place, for temperatures below -5°C and down to -15°C, the boiler
must be fitted with the special frost protection kit. For proper installation, please refer to the instructions in the kit.

2.4 Gas connection

Before making the connection, ensure that the unit is arranged for operation
B
with the type of fuel available.
The gas must be connected to the corresponding union (see ) in conformity
with current regulations, with a rigid metal pipe or with a continuous flexible
s/steel tube, installing a gas cock between the system and boiler. Make sure
that all the gas connections are tight. Otherwise there may be a risk of fire,
explosion or suffocation.

2.5 Electrical connections

IMPORTANT

BEFORE CARRYING OUT ANY OPERATION THAT REQUIRES REMOVING
B
THE CASING, DISCONNECT THE BOILER FROM THE ELECTRIC MAINS
WITH THE MAIN SWITCH.
NEVER TOUCH THE ELECTRICAL COMPONENTS OR CONTACTS WITH THE
MAIN SWITCH TURNED ON! DANGER OF ELECTRIC SHOCK WITH RISK OF
INJURY OR DEATH!
The unit must be connected to an efficient grounding system in accordance with
B
applicable safety regulations. Have the efficiency and suitability of the grounding
system checked by professionally qualified personnel; the Manufacturer declines
any liability for damage caused by failure to earth the system.
The boiler is prewired and provided with a three-pole cable, without a plug, for con-
nection to the electric line. The connections to the grid must be made with a per-
manent connection and equipped with a bipolar switch whose contacts have a
minimum opening of at least 3 mm, interposing fuses of max. 3A between the
boiler and the line. Make sure to respect the polarities (LINE: brown wire / NEU-
TRAL: blue wire / GROUND: yellow-green wire) in the connections to the electric
line.
The unit's supply cable MUST NOT BE REPLACED BY THE USER. If the cable
B
gets damaged, turn the unit off and have the cable replaced only by profes-
sionally qualified personnel. In case of replacement, only use cable "HAR H05
VV-F" 3x0.75 mm2 with max. external diameter of 8 mm.
Room thermostat (optional)
ATTENTION: THE ROOM THERMOSTAT MUST HAVE VOLTAGE-FREE CON-
B
TACTS. CONNECTING 230V TO THE ROOM THERMOSTAT TERMINALS
WILL PERMANENTLY DAMAGE THE PCB.
224
BLUEHELIX TOP RRT K 50
cod. 3541Q281 - Rev. 02 - 10/2020
EN